Children&#39;s toothbrush



FIG. 1 is a front perspective view of a children's toothbrush showing my new design;

FIG. 2 is a left side perspective view thereof;

FIG. 3 is a rear perspective view thereof;

FIG. 4 is a top view perspective thereof;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a right side perspective view thereof. 

The ornamental design for a children's toothbrush, as shown and described. 